CN105332729A - Stope coal wall caving control device - Google Patents
Stope coal wall caving control device Download PDFInfo
- Publication number
- CN105332729A CN105332729A CN201510799463.3A CN201510799463A CN105332729A CN 105332729 A CN105332729 A CN 105332729A CN 201510799463 A CN201510799463 A CN 201510799463A CN 105332729 A CN105332729 A CN 105332729A
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- China
- Prior art keywords
- wall caving
- support
- hydraulic pressure
- caving
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003245 coal Substances 0.000 title claims abstract description 54
- 230000001012 protector Effects 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000009916 joint effect Effects 0.000 abstract 1
- 238000005065 mining Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000167854 Bourreria succulenta Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019693 cherries Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention provides a stope coal wall caving control device. The stope coal wall caving control device is characterized in that a hydraulic support device and a caving protection device are integrally arranged on the same support base, a hydraulic support top plate and a hydraulic support auxiliary plate of the hydraulic support device are arranged on the top of a coal seam, the caving protection device is arranged on a stope coal wall, and support protection angles of a caving protection plate of the caving protection device can be adjusted. The stope coal wall caving control device has the advantages that the hydraulic support device and the caving protection device are integrally arranged, the support protection angles of the caving protection plate can be adjusted, and accordingly the caving protection fastening property and safety can be greatly improved; the stope coal wall caving control device is provided with angle adjusting teeth, accordingly, angles of the caving protection plate can be conveniently adjusted, and the caving protection plate can be conveniently mounted; anchor rods are arranged on the protection plate, accordingly, the coal wall caving fastening property can be effectively improved under joint effects of the protection plate and the anchor rods, and roof collapse can be prevented; positioning protrusions are arranged on anchor rod holes, and accordingly the supporting convenience and accuracy of the anchor rods can be improved.
Description
Technical field
The present invention relates to coal-mining technique field, be specially a kind of stope coal wall caving control device, belong to coal mining technical field of safety protection.
Background technology
In the mining technology that China is full-fledged, become and solved China's high seam coal-mining method and difficult effective way of adopting high seam technical barrier, achieved significant techno-economic effect.But cherry coal longwall top coal caving will reach high-yield and high-efficiency still not easily, frequent puzzlement is that work plane roof of head face is unstable, stope coal wall caving can cause non-support space enlargement before frame, and then cause roof of head face (top coal) leakage to be emitted, affect face propulsion speed and normal circulation operation, the study on prevention of therefore carrying out the coal wall caving of loose thick coal layer stope has meaning of crucial importance.But, current stope coal wall caving protection is fairly simple with control device general structure, hydraulic support only or anchor pole is such as just had to carry out coal wall caving protection, this mode, because the supporting at rib and top, coal seam is separated from each other, carrying out in recovery process, often easily there is protection not in time, cause the danger of side fall roof, threaten the safety of stope workman greatly, therefore, how to provide a kind of colliery top shield and coal wall caving are protected and the fastening device combined, for the control of stope coal wall caving, there is extremely important effect.
Based on above technical problem, the invention provides a kind of stope coal wall caving control device, hydraulic support device and wall caving protector are wholely set by it, and the supporting protection angle of wall caving backplate is set to can regulate, substantially increase tightness and the safety of wall caving protection, simultaneously, be provided with angular adjustment tooth, can carry out regulating to the angle of wall caving backplate easily and install, backplate of the present invention is provided with anchor pole, by with anchor pole acting in conjunction, can be good at the tightness improving coal wall caving, prevent the generation of its roof fall phenomenon, and positioning convex is set on bolthole, convenience and the accuracy of bolt support can be improved.
Summary of the invention
The object of this invention is to provide a kind of structure and use simply, rationally, cost is low, a kind of stope coal wall caving control device of stable performance, long service life.
For achieving the above object, the present invention adopts following technical scheme: a kind of stope coal wall caving control device, it comprises hydraulic support device and wall caving protector, it is characterized in that, described hydraulic support device and described wall caving protector one be arranged on same base for supporting, and the hydraulic pressure support top board of described hydraulic support device and hydraulic pressure support subplate support the top being arranged on coal seam, and arrange in obtuse angle between hydraulic pressure support top board and described hydraulic pressure support subplate, described wall caving protector is arranged on stope rib, and the supporting protection angle of the wall caving backplate of described wall caving protector can regulate, the shape of described wall caving backplate is circular arc.
Further, as preferably, described hydraulic support device comprises hydraulic pressure support top board, hydraulic pressure support subplate, hinged support post, supporting base, hydraulic jack and support bar, wherein, described hydraulic pressure support top plate supporting is arranged on the top in described coal seam, described hydraulic pressure support subplate supports and is arranged on the sidewall in described coal seam, and hinged rotatable setting between described hydraulic pressure support top board and described hydraulic pressure support subplate, described base for supporting is provided with described supporting base, the hinged setting in one end of described supporting base and described hinged support post, the other end of described hinged support post and the hinged setting of described hydraulic pressure support subplate, also hingedly on described base for supporting be provided with described hydraulic jack, the upper end of described hydraulic jack is connected with described support bar, the upper end of described support bar and the rotatable hinged setting in middle part of described hydraulic pressure support top board, described wall caving protector comprises wall caving backplate, anchor pole, baseboard support post, buckle is protruding, buckle slot, interior base, angular adjustment tooth, locking steel column and upper adjustable column, wherein, the cavity installing described interior base is provided with in described base for supporting, the top of described interior base is provided with deep-slotted chip breaker, the inwall of described deep-slotted chip breaker is provided with multiple teeth groove, the lower end of described upper adjustable column is provided with arc convex, the external surface of described arc convex is provided with multiple described angular adjustment tooth, described angular adjustment tooth and described teeth groove snap-fit engagement, the upper end of described upper adjustable column is provided with buckle projection, the lower end of described baseboard support post is provided with buckle slot, described buckle projection stretches into snap-fit engagement in described buckle slot, the side of described baseboard support post is also provided with described locking steel column, described locking steel column inserts in described buckle slot and described buckle projection successively to described baseboard support post locking, hinged being rotatably connected in the middle part of described baseboard support post is provided with hydraulic pressure support piston rod, the upper end of described hydraulic pressure support piston rod is stretched in hydraulic support cylinder, described hydraulic support cylinder is hinged to be arranged on described hydraulic pressure support top board, the upper end welding of described baseboard support post is provided with wall caving backplate, described wall caving backplate is provided with multiple bolthole, described anchor pole is arranged in described bolthole.
Further, as preferably, the shape of cross section of described angular adjustment tooth is isosceles trapezoid.
Further, as preferably, the shape of described buckle projection is cylindrical or cuboid.
Further, as preferably, between described wall caving backplate and described coal seam, reinforcing bar protective screening is also provided with.
Further, as preferably, the two ends of the bolthole on described wall caving backplate are provided with positioning convex, and described positioning convex gives prominence to described wall caving backplate surface 8-16mm.
Further, as preferably, described anchor pole is hydraulic expansion anchor pole.
Further, as preferably, one end away from described hydraulic pressure support subplate of described pressure roof supporting is provided with cone point.
Beneficial effect of the present invention is:
A kind of stope coal wall caving control device provided by the invention, hydraulic support device and wall caving protector are wholely set by it, and the supporting protection angle of wall caving backplate is set to can regulate, substantially increase tightness and the safety of wall caving protection, simultaneously, be provided with angular adjustment tooth, can carry out regulating to the angle of wall caving backplate easily and install, backplate of the present invention is provided with anchor pole, by with anchor pole acting in conjunction, can be good at the tightness improving coal wall caving, prevent the generation of its roof fall phenomenon, and positioning convex is set on bolthole, convenience and the accuracy of bolt support can be improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of stope coal wall caving control device of the present invention;
Fig. 2 is the wall caving guard board structure schematic diagram of a kind of stope coal wall caving control device of the present invention;
Fig. 3 is the angle adjustment mechanism schematic diagram of a kind of stope coal wall caving control device of the present invention;
Wherein, 1, coal seam, 2, hydraulic pressure support top board, 3, hydraulic pressure support subplate, 4, hinged support post, 5, base for supporting, 6, supporting base, 7, hydraulic jack, 8, support bar, 9, hydraulic support cylinder, 10, hydraulic pressure support piston rod, 11, wall caving backplate, 12, anchor pole, 13, baseboard support post, 14, buckle is protruding, 15, buckle slot, 16, interior base, 17, angular adjustment tooth, 18, steel column is locked, 19, upper adjustable column, 20, bolthole.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description is carried out to the present invention.But should be appreciated that being provided only of accompanying drawing understands the present invention better, they not should be understood to limitation of the present invention.
As Figure 1-3, the invention provides a kind of stope coal wall caving control device, it comprises hydraulic support device and wall caving protector, it is characterized in that, described hydraulic support device and described wall caving protector one be arranged on same base for supporting 5, and the hydraulic pressure support top board 2 of described hydraulic support device and hydraulic pressure support subplate 3 support the top being arranged on coal seam 1, and arrange in obtuse angle between hydraulic pressure support top board 2 and described hydraulic pressure support subplate 3, described wall caving protector is arranged on stope rib, and the supporting protection angle of the wall caving backplate of described wall caving protector can regulate, the shape of described wall caving backplate 11 is circular arc.
In the present embodiment, described hydraulic support device comprises hydraulic pressure support top board 2, hydraulic pressure support subplate 3, hinged support post 4, supporting base 6, hydraulic jack 7 and support bar 8, wherein, described hydraulic pressure support top board 2 supports the top being arranged on described coal seam 1, described hydraulic pressure support subplate 3 supports and is arranged on the sidewall in described coal seam, and hinged rotatable setting between described hydraulic pressure support top board 2 and described hydraulic pressure support subplate 3, described base for supporting 5 is provided with described supporting base 6, the hinged setting in one end of described supporting base 6 and described hinged support post 4, the other end of described hinged support post 4 and the hinged setting of described hydraulic pressure support subplate 3, also hingedly on described base for supporting 5 be provided with described hydraulic jack 7, the upper end of described hydraulic jack 7 is connected with described support bar 8, the upper end of described support bar 8 and the rotatable hinged setting in middle part of described hydraulic pressure support top board 2, described wall caving protector comprises wall caving backplate 11, anchor pole 12, baseboard support post 13, buckle projection 14, buckle slot 15, interior base 16, angular adjustment tooth 17, locking steel column 18 and upper adjustable column 19, wherein, the cavity installing described interior base 16 is provided with in described base for supporting 5, the top of described interior base 16 is provided with deep-slotted chip breaker, the inwall of described deep-slotted chip breaker is provided with multiple teeth groove, the lower end of described upper adjustable column 19 is provided with arc convex, the external surface of described arc convex is provided with multiple described angular adjustment tooth 17, described angular adjustment tooth 17 and described teeth groove snap-fit engagement, the upper end of described upper adjustable column 19 is provided with buckle projection 14, the lower end of described baseboard support post 13 is provided with buckle slot 15, described buckle projection 14 stretches into snap-fit engagement in described buckle slot 15, the side of described baseboard support post is also provided with described locking steel column 18, described locking steel column 18 inserts in described buckle slot 15 and described buckle projection 14 successively to described baseboard support post locking, hinged being rotatably connected in the middle part of described baseboard support post 13 is provided with hydraulic pressure support piston rod 10, the upper end of described hydraulic pressure support piston rod 10 is stretched in hydraulic support cylinder 9, described hydraulic support cylinder 9 is hinged to be arranged on described hydraulic pressure support top board 2, the upper end welding of described baseboard support post 13 is provided with wall caving backplate 11, described wall caving backplate 11 is provided with multiple bolthole 20, described anchor pole 12 is arranged in described bolthole 20.
In the present embodiment, the shape of cross section of described angular adjustment tooth 17 is isosceles trapezoid.The shape of described buckle projection 14 is cylindrical or cuboid.Reinforcing bar protective screening is also provided with between described wall caving backplate 11 and described coal seam 1.As shown in Figure 2, the two ends of the bolthole on described wall caving backplate 11 are provided with positioning convex, and described positioning convex gives prominence to described wall caving backplate surface 8-16mm.Described anchor pole is hydraulic expansion anchor pole.One end away from described hydraulic pressure support subplate of described pressure roof supporting is provided with cone point.
Hydraulic support device and wall caving protector are wholely set by the present invention, and the supporting protection angle of wall caving backplate is set to can regulate, substantially increase tightness and the safety of wall caving protection, simultaneously, be provided with angular adjustment tooth, can carry out regulating to the angle of wall caving backplate easily and install, backplate of the present invention is provided with anchor pole, by with anchor pole acting in conjunction, can be good at the tightness improving coal wall caving, prevent the generation of its roof fall phenomenon, and positioning convex is set on bolthole, convenience and the accuracy of bolt support can be improved.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1. a stope coal wall caving control device, it comprises hydraulic support device and wall caving protector, it is characterized in that, described hydraulic support device and described wall caving protector one be arranged on same base for supporting, and the hydraulic pressure support top board of described hydraulic support device and hydraulic pressure support subplate support the top being arranged on coal seam, and arrange in obtuse angle between hydraulic pressure support top board and described hydraulic pressure support subplate, described wall caving protector is arranged on stope rib, and the supporting protection angle of the wall caving backplate of described wall caving protector can regulate, the shape of described wall caving backplate is circular arc.
2. a kind of stope coal wall caving control device according to claim 1, it is characterized in that, described hydraulic support device comprises hydraulic pressure support top board, hydraulic pressure support subplate, hinged support post, supporting base, hydraulic jack and support bar, wherein, described hydraulic pressure support top plate supporting is arranged on the top in described coal seam, described hydraulic pressure support subplate supports and is arranged on the sidewall in described coal seam, and hinged rotatable setting between described hydraulic pressure support top board and described hydraulic pressure support subplate, described base for supporting is provided with described supporting base, the hinged setting in one end of described supporting base and described hinged support post, the other end of described hinged support post and the hinged setting of described hydraulic pressure support subplate, also hingedly on described base for supporting be provided with described hydraulic jack, the upper end of described hydraulic jack is connected with described support bar, the upper end of described support bar and the rotatable hinged setting in middle part of described hydraulic pressure support top board, described wall caving protector comprises wall caving backplate, anchor pole, baseboard support post, buckle is protruding, buckle slot, interior base, angular adjustment tooth, locking steel column and upper adjustable column, wherein, the cavity installing described interior base is provided with in described base for supporting, the top of described interior base is provided with deep-slotted chip breaker, the inwall of described deep-slotted chip breaker is provided with multiple teeth groove, the lower end of described upper adjustable column is provided with arc convex, the external surface of described arc convex is provided with multiple described angular adjustment tooth, described angular adjustment tooth and described teeth groove snap-fit engagement, the upper end of described upper adjustable column is provided with buckle projection, the lower end of described baseboard support post is provided with buckle slot, described buckle projection stretches into snap-fit engagement in described buckle slot, the side of described baseboard support post is also provided with described locking steel column, described locking steel column inserts in described buckle slot and described buckle projection successively to described baseboard support post locking, hinged being rotatably connected in the middle part of described baseboard support post is provided with hydraulic pressure support piston rod, the upper end of described hydraulic pressure support piston rod is stretched in hydraulic support cylinder, described hydraulic support cylinder is hinged to be arranged on described hydraulic pressure support top board, the upper end welding of described baseboard support post is provided with wall caving backplate, described wall caving backplate is provided with multiple bolthole, described anchor pole is arranged in described bolthole.
3. a kind of stope coal wall caving control device according to claim 2, is characterized in that, the shape of cross section of described angular adjustment tooth is isosceles trapezoid.
4. a kind of stope coal wall caving control device according to claim 2, is characterized in that, the shape of described buckle projection is cylindrical or cuboid.
5. a kind of stope coal wall caving control device according to claim 1, is characterized in that, be also provided with reinforcing bar protective screening between described wall caving backplate and described coal seam.
6. a kind of stope coal wall caving control device according to claim 2, it is characterized in that, the two ends of the bolthole on described wall caving backplate are provided with positioning convex, and described positioning convex gives prominence to described wall caving backplate surface 8-16mm.
7. a kind of stope coal wall caving control device according to claim 2, it is characterized in that, described anchor pole is hydraulic expansion anchor pole.
8. a kind of stope coal wall caving control device according to claim 1-7 any one, is characterized in that, one end away from described hydraulic pressure support subplate of described pressure roof supporting is provided with cone point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510799463.3A CN105332729B (en) | 2015-11-17 | 2015-11-17 | A kind of stope coal wall caving control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510799463.3A CN105332729B (en) | 2015-11-17 | 2015-11-17 | A kind of stope coal wall caving control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105332729A true CN105332729A (en) | 2016-02-17 |
| CN105332729B CN105332729B (en) | 2017-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510799463.3A Active CN105332729B (en) | 2015-11-17 | 2015-11-17 | A kind of stope coal wall caving control device |
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| Country | Link |
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| CN (1) | CN105332729B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905785A (en) * | 2017-12-14 | 2018-04-13 | 林青 | A kind of anti-wall caving device that fully-mechanized mining working is pressed for thump |
| CN108843365A (en) * | 2018-07-11 | 2018-11-20 | 安徽南方煤矿机械有限公司 | A kind of mine hydraulic bracket setting load holding meanss |
| CN110107324A (en) * | 2019-04-29 | 2019-08-09 | 华北科技学院 | A kind of asynchronous wall caving control device of the compound coal wall of gob-surrounded pillar |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3425733A1 (en) * | 1983-07-12 | 1985-01-24 | Dowty Mining Equipment Ltd., Ashchurch, Tewkesbury,Gloucestershire | SCREW EXTENSION RACK |
| CN201902220U (en) * | 2010-12-21 | 2011-07-20 | 山西晋城无烟煤矿业集团有限责任公司 | Light end bracket |
| CN102312676A (en) * | 2011-09-26 | 2012-01-11 | 山西晋城无烟煤矿业集团有限责任公司 | Construction method for high face mining support removing passage under complicated geological condition |
| CN102926785A (en) * | 2012-11-16 | 2013-02-13 | 山东矿机集团股份有限公司 | Method for preventing rib spalling of coal wall and roof falling in head face and hydraulic support thereof |
| CN204126658U (en) * | 2014-10-09 | 2015-01-28 | 华北科技学院 | A kind of mine support device |
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2015
- 2015-11-17 CN CN201510799463.3A patent/CN105332729B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3425733A1 (en) * | 1983-07-12 | 1985-01-24 | Dowty Mining Equipment Ltd., Ashchurch, Tewkesbury,Gloucestershire | SCREW EXTENSION RACK |
| CN201902220U (en) * | 2010-12-21 | 2011-07-20 | 山西晋城无烟煤矿业集团有限责任公司 | Light end bracket |
| CN102312676A (en) * | 2011-09-26 | 2012-01-11 | 山西晋城无烟煤矿业集团有限责任公司 | Construction method for high face mining support removing passage under complicated geological condition |
| CN102926785A (en) * | 2012-11-16 | 2013-02-13 | 山东矿机集团股份有限公司 | Method for preventing rib spalling of coal wall and roof falling in head face and hydraulic support thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905785A (en) * | 2017-12-14 | 2018-04-13 | 林青 | A kind of anti-wall caving device that fully-mechanized mining working is pressed for thump |
| CN107905785B (en) * | 2017-12-14 | 2024-02-20 | 吴正海 | A prevent piece group device for strong rock burst comprehensive face of adopting |
| CN108843365A (en) * | 2018-07-11 | 2018-11-20 | 安徽南方煤矿机械有限公司 | A kind of mine hydraulic bracket setting load holding meanss |
| CN110107324A (en) * | 2019-04-29 | 2019-08-09 | 华北科技学院 | A kind of asynchronous wall caving control device of the compound coal wall of gob-surrounded pillar |
| CN110107324B (en) * | 2019-04-29 | 2020-11-03 | 华北科技学院 | Asynchronous rib-caving control device for composite type coal wall of island coal pillar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105332729B (en) | 2017-10-27 |
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